burdick



C. L. BURDICK.

PAINTING MACHINE. APPLICATION FILED res. l. 191s.

1,3 1 3,1670. Patented Aug. 19, 1919.

3 SHEETS-SHEET 1.

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C'. L. BURDIC'K.

PAINTING MACHINE.

APPLICATION FILED FEB. I. 19x8- 1,313`,670, ParenfeaAug. 19,1919.

3 SHEETS-SYHEET 2.

@Mw/aeg C. L. BURDICK.

PMNTING MACHINE.

APPLICATION FILED FEB. I. I9I8.

Patented Aug. 19, 1919.

Zzz/efz for' (Za/J CHARLES LAURENCE BURfDlCK, OF WOOD GREEN, LONDON,ENGLAND.

PAINTING-MACHINE.

Specification of Letters Patent.

y Patentednug. 19, 1919.

Application led February 1,' 1918. Serial No. 214,932.

To all 'whom t may concern.'

Be it known 'that I, CHARLES LAURENCE BURDICK, a citizen oi the UnitedStates, residingat Vlro'od Green, in the county of London, ngland, haveinvented .new and useful Improvements in Painting-Machines, of

' which the following'is a specification.

' any projections from or unevenness o My invention relates to machinesdesigned for painting golf balls or other round or cylindrical objects.tributing any liquid as' oil, paint', lacquer, varnish and the like.

When small objects of this class are painted by hand ythere, isconsiderable difliculty (owing to inconvenience of holding and turningthe object) in obtaining a um#` form coat. 'c

I' overcome this diiculty'by ,rotating ther y ball or object and causethe paint to be deposited by means of a spraying 'instrument orinstruments. j

The spraying instrument is mounted on -a pivoted frame-work in such amanner that itis kept in radial alinement with the object being painted,andl is moved throughthe arc of a circle or any eccentric path-1n amanner permitting the paint. to be blown on to the article from variousangles, o r varying positions.

By a convenient provide opposite form 'of construction I the obing aportion of the article, special appara-l tus for holding. the articleand means for taking care of the dust or fumes from the spray.

My invention will [be more fully set forth-` by reference to theaccompanying drawings,

in which-f- Figure 1 is a diagrammatic plan view of one form of theinvention showingl details of the spraying mechanism in section.

It may be used for dis.

that the article may be rotated ink movement of the spraying in-V forregulating the volume `taper point of valves are res 21 and 22- whichnormally keep the valves Fig. 211s a sectional view on the line X-X ofFig. 1.

Fig. 3 is a sectional view mainlyk on the line Y--Y of Fig. 1, butshowing the sprayinvmechanism in elevation.

1g. 4 1s a View, similar to Fig. 1, with some of the parts removed,illustrating a modified arrangement.- l l As shown in the drawings, 1 isa base or platform; 2 is a standard'mounted on the base and carrying ajournaled spindle or shaft 3; 4 is a similar standard carrying a tailstock 5; 6 is a stud on which is mounted a disk 7 8 may represent anyarticle to be painted, varnished or otherwise treated.

A small pinion wheel 9 mounted on the shaft 3 engages with a rack 10 orsegment of a gear wheel which is secured to or integral with the disk 7.

Q, The spindle 3 is provided with a head carrying three tapery pins 11,1l', 11 which in this case are used to hold the article to be painted,but I wish to point out that this lspindle may be provided with any ofthe well?" known chucks or devices which .are used to hold articles inmachine tools.

'.'The'tail stock is provided with a sprin "actuated spindle 5 having a,knob 12 whic enables the operator to quickly remove the painted article.

The spring 13'keeps the pressure normally on the article beingrpainrted; in vorder to avoid the friction consequent on rotating thespindle 5 with its spring, I provide a more slender interior shaft14'having a head in vwhich `are mounted three taper pins, 15, 15 15which engage the article.

A mask 16 may be so positioned as to protect any part of the articlefrom the paint.

17 is a handle for operating `the machine.

The spraying apparatus 18 may be of any convenient form; it is providedwith an air valve at 19 and a paint or liquid valve in the the conicalpiece 20; Vthese ectively actuated bv springs closed; theyvv are openedto set the vsprayer in action by means of the lever 24, thls leverengages nuts to the valve stems 25v and 26 respectively.

The lever 24 1s provided with a friction roller 'which engages the 'edgeof a cam,-

27 and "28 adjustably securedshaped piece 32 which according to itsshape and position controls the delivery of the paint from the sprayer.i

Compressed alr'is led into the sprayer through the pipe or nipple 29 andpaint is introduced through the nipple 30.

A cap or nozzle 31 with a'circular opening is positioned over the paintdischarge nozzle 20 so that a ring of escaping air surrounds 'the innernozzle at the `polnt of discharge.

In Figs. 1 to 3 the article to be painted is shown as circular inlconfiguration, but in some instances the article might have aneccentric form as shown in Fig. 4 and it would be desirable to move thesprayer` along a correspondingly eccentric ath; to enable `thisto bedone I mount t e sprayer on a shaft 34 which may be provided withrollers 36, 36 and disks or washers 35, 35.-

Mounted on the framework or base 1 are pieces 37 and 38 having slots oropenings 42 or 42'l shaped in accordance with the path alon which' it isdesired that the sprayer sha1 move and-these pieces serve as cams to enage the rollers 36, 36 respective l he shaft 34 passes through a radialslot 43 in the disk 7; the pieces 35, 35 serving to keep the shaftupright.

When the piece 7 is rotated on its pivot the sprayer will be advanced ina movement conforming toy the slots 42 inthe and 38,`while maintainingits radlal aliney ment .with the article toqbe painted. Since 35thearticle to be painted is spherical in the fcaseillustrated lin Figs.1 to 3, the slots 42 are, in that case, made circular. When the articlehas a contour which is not circular the slot is made of a correspondinshape and then, as the shaft 34 is move along such slot, the slot 43permits the shaft 34 to follow said first-named slot.

By suitablyshaping the cam 32, which engages .the lever-2 4, more orless paint may be distributed at any point in its path of movement whileby regulating the set nut 28 on lthe sprayer a general control of thepaint is obtainable.

In painting a perfectl spherical article the sprayer ma be rigidlysecured to the disk 7 and the s aft 34 and pieces 37 and 38 dis ensedwith.

n the arrangement shown in Fig. 1 the* article to be painted isspherical, and consequently the slots 42 are circular and concentric tothe disk 7. In Fig. 4 the article t o be painted is shown assubstantially elliptica and the slots 42a are in such case, eccentric tothe disk 7. The shaft 34 is fiattened wlere it passes through the slot43. In Fig. 4 the upper one ofthe two parts in which the slots 42 areformed has been removed and only the lower part 38l is shown. The cam32l operating the lever ieces 37 or may not be concentric to the slot42, ac-

c ording to whether it is necessary to give a constant or variableopening to the air and paint valves, the relation between these valvesand the lever 24 being adjusted, if necessary, by means of the nuts 27and 28.

The machine may be provided with a partial or complete covering andmeans for taking away by suction or exhaust air any loose spray or fumesfrom the paint. In the drawing, 40 is a partial coverin or hood providedwith an opening 41 rom which the air is to be exhausted.

It will be obvious that more than one sprayer could be mounted'on themachine. Instead of the machine being handoperated reciprocal movementmight be communicated to it from any convenient source of power.

The operation of the machine is as follows Compressed air being suppliedthrough a fieXible pipe to the nipple 29 and paint being inductedthrough the nipple 30, the article is placed in the chuck or holder; thedisk 7 is then rotated 'by means of the handle 17 through the segment ofa circle, say 100 degrees; the spindle 3 will -be rapidly rotated and assoon as the lever 24 arrives at the end of the cam 32 it is pressed backby contact with the cam; the sprayer will then be set in operation andpaint will be blown on to one side or end of the rotating article, thesprayer moving through the segment of a circle will finish at the otherend of the armcle; and the lever 24 being then releasedV by passing oilthe other end of the cam 32 the spraying will cease. If one simplemovement is sufiicient to give the desired coating the article isremoved and another one placed in the machine for painting on the returnstroke. In some instances it may vbe desirable to paint the article witha secing and rotating an article to be painted, a A

sprayer, and means for moving the sprayer along curved and radial pathssimultaneously such that the resultant path of movement of the sprayeris similar to the contour of the article to be painted.

2. In a painting machlne, means for holding and rotating an article tobe painted, a

sprayer, means for moving the sprayer along curved and radial pathssimultaneously such that the resultant path of movement ofthe sprayer issimilar to the contour of the article to be painted and means formaintaining the sprayer in alinement with the said radial path While itis thus moved.

8. In a painting machine, means for holding and rotatin an article to bepainted, a sprayer, means or moving the sprayer along curved and radialpaths simultaneously such that the resultant path of movement of thesprayer is similar to the contour of the article held lin the machine tobe painted and at a uniform distance from the exterior surface ofthesaidarticle from end to end.

4. In a painting machine, means for holding and rotatin an article to bepainted, a sprayer, means or moving'the sprayer along curved and radialpaths simultaneously such that the resultant path of movement of thesprayer is similar to the. contour of the article .to be painted and ata uniform distance from the exterior surf-ace of the 'said article heldin the machine, and means for maintaining the sprayer in alinement withthe said radiall ath While thus moved.

5. In a painting machine, means for holding and rotating an article tobe painted, a

sprayer, and means for moving the sprayer f simultaneously along acurvedpath and a' radial path rotatable about an axis passing the article isrotated. v .y

6. In a painting machine,vrotatable means `transversely through the'axis about which for holding an article -to be painted, a,

sprayer, means for moving the sprayeralong curved and radial pathssimultaneously, and av motion transmitting gearing connecting the meansfor moving the sprayer with the rotatable means for holding the saidarticle.

7. In a painting machine, rotatable means for holding an article to bepainted, .a sprayer, means for moving the sprayer s1- multaneously alonga curved path and a radial path rotatable about an axis passing. theaxis about which transversely throu the arti-cle is rotate, and a motiontransmitting gearing connecting the means for moving the sprayer withthe rotatable means for holding the said article.

8. In a painting machine, rotatable means for holding an article to bepainted, a sprayer, means for moving, the sprayer in. both directionsalong a path similar to the contour of the article to be painted, and

means for transmitting motion between the sprayer moving'means and thearticle holding means the said motion transmitting means being arrangedso that the direction of rotation of the article is reversed when themovement of the sprayer is reversed.

9. In a painting machlne, means for rotatably holding an article to bepainted, a

sprayer, means for imparting an oscillatory movement to the sprayeralong curved and radial paths simultaneously, and motiontransmittinggearing connecting the sprayer moving means and the article holdingmeans.

10. In a painting machine, means for rotatably holding an article to bepainted, a sprayer, means for imparting an oscillatory movement of thesprayer along curved and radial paths simultaneously, means formaintaining the sprayer in position to direct a spray radially on to thesaid article, and gearing connecting the said sprayer moving means andthe article holding means.

11. In a painting machine, means for holding and rotating an article tobe painted, a sprayer, means for moving the sprayer along a path similarto the contour of the article to be p-ainted, and means operatedconsequentially by the movement of the sprayer for put/ting the sprayerinto and out of operation.

` 12. In a painting machine, means for holdsprayer, means for moving thesprayer along a path' similar to the contour of the article to vbepainted, and means operated consequentially by the movement of thesprayer to put the sprayer into operation after it has commenced to movealong ,this path from one endthereof, and to put the sprayer out ofoperation before it reaches the other end of this path.

14. In -a painting machina-means for holdv'ing and rotating an articleto be painted, a

sprayer, means for moving the said sprayer along a curved path and aradial path simultaneously, and a covering preventing `uncontrolledescape of fumes from the-spray delivered by the sprayer.

15. In a painting machine, a rotary spindle, a second .rotary spindleAin alinement withl the first mentioned spindle, a spring urging. thesecond` spindle toward the first mentioned spindle, work-holdingrvelements at-the adjacent ends of these spindles, a rotatable disk anda sprayer carried by the said disk. f

16. In a painting machine, a rotary workholding spindle, a' diskrotatable about an axis ltransverse lto the said spindle, a cam platehaving a guide slot formed therein, and

a sprayer mounted. on the 'said disk and movable along the said guideslot.

disk, and a rack on the disk gearing with thesaid pinion.

19. In a painting machine, a rotary workholding spindle, a pinion on thesaid spindle, adisk having a radial slot therein and rotatable about anaxis transverse to the said spindle, a cam plate having a guide slotvformed therein, a sprayer slidably held in the slot in the disk andmovable along .the said guide slot, and a rack on the disk gearing withthe said pinion.

20. In a painting machine, a rotary Workholding spindle, a cam platehaving a guide slot therein, v a s rayer movable along the said guideslot, evers carried by and controlling the operation of the sprayer, anda cam-plate actuating the levers as the sprayer is moved along the saidguide slot.

21. In a painting machine, a rotary workholdingl spmdle, a movablesprayer, a lever controlling the operation of the sprayer and a camplate actuating the lever as the i sprayer is moved.

22. In a painting machine, a rotary Workholding spindle, a movablesprayer, levers adjustably connected to separate valves controlling theejection of air and liquid respectively from the sprayer, and a camplate actuating the lever as the sprayer is moved.

23. In a painting machine, a rotary Workholding spindle, a pinion on thesaid spindle, a disk having a radial slot therein, a rack on said diskgearing with the said pinion, a cam plate havlng a guide slot formed"therein, a sprayer carried in the slot in the disk and movable alongthe said guide slot, levers carried by and controlling the operation ofthe sprayer, and a cam plate actuating the levers as the sprayer ismoved along the guide slot.

24. In a painting machine, a rotary Workholding spindle, a sprayer, anda mask supported in position to screen part of an article held by saidspindle from a spray discharged from the said sprayer.

CHARLES LAURENCE nimmer.

Witnesses:

CONRAD ARNOLD, HERBERT A. BEEs'mN.

